Give it a go, see what you can find. There are some problems with the wayback machine when it comes to patents. One of which is that if their robots are blocke

Give it a go, see what you can find. There are some problems with the wayback machine when it comes to patents. One of which is that if their robots are blocked using robots.txt, they will remove all previous content that would also have been blocked (or at least, the content can be removed by the author though some means). This is pretty shitty when the best citation is something from the inventor themselves, and they go and delete all history of the content.